Hello
The main board maker is ASUS, model name is P5GDC-V Deluxe (in one place text on package says P5GDC-V DELUXE-EAYO). Here is specification and link to BIOS downloads: http://asus.com.pl/product.aspx?P_ID=JRsYCkkzvo4pVF3i
Outputs of commands 'flashrom -V', 'lspci -nnvvvxxx', 'superiotool -dV' are attached.